Equalizing hoist



S. LIVENGOOD.

EQUALIZING HOIST.

APPLICATION FILED 0120.3, 1920.

Patented May 23,1922.`

2 SHEETS-SHEET l.

mam

W. S. LIVENGOOD. EOUALIZING HOIST. APPLICATION man Dems. |920.

Patented May 23,1922.

2 SHEETS--SHEET 2 lwuv/wboz mamme/ya@ ITE@ STititlFltt WINFIELD S. LIVENGOOD, OF KANSAS CITY, MISSO'R, ASSGNOR T0 ANDREW' A. KRATEER, OF KANSAS CITY, MISSOURI.

EQUALIZINC-t HOIST.

remise..

T0 all 107mm t may concern: s

Be it known that l, VVINFIELD S. LIVEN- econ, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Equalizing Hoists; and 1 do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of thisspecilication.

This invention relates to hoists tor dump wagons and the like in which a winding drum and cables are used for raising one end of the vehicle body.

The invention contemplates the provision of an equalizer whereby the strains will be distributed equally on the cables, there being two winding cables, one Jfor each front corner ot the dump body oi the vehicle.

In the drawings,

Fig. 1 is a front, perspective view of a hoist mechanism and portion of the dump body.

Fig. 2 is an elevational view of the equal- `izer applied, part of the trame which supports it being shown in section, and t Fig. 3 is a top end view of the hoisting mechanism on which the equalizer is mounted. y

The invention is illustrated as applied to a hoisting mechanism such as is shown in my Patent No. 1,312,489 otr-ingiusti 5, 1919. The driving mechanism and cables are substantially like that shown inthe patent, the essential difference being in the equalizer, which is a material improvementl over the construction shown in said patent.

1 designates a vehicle truck of `any pre` terred construction having a chassis comprisingside bars 2 and 3, on which may be pivoted the dumping body 4, at the front corners oi' which are brackets 5 and 6, to the ends of which are fastened hoisting cables 7 and 8, which pass over the sheaves 9 and 10 on the upper ends ot the hoisting 'trame 11. The cables also pass over the sheaves 12 and 13 ot an eqnializingr device consisting` of the sheaves and the supporting` bars or levers 14 and 15, which are pivoted intermediate their ends, as at 16, to a sha-1t or bolt 17, which passes through the side bars Specification of Letters Patent.

Application led December 8,1920. SerialNo. 429,266.

18 and 19 ot the trame 11. These side bars also support the sheaves 9 and 10.

The uprights or standards 20 and 21 of the trame 11 are carried by a channel Q2, which constitutes the base tor the trame, the channel being resiliently secured to the side bars Q and 3 by springs 23 and 2liin substantially the same manner as is shown in the said patent above referred to.

The hoisting mechanism consisting of the drum 25 may be substantially like that shown in my former patent, the cables 7 and 8 being wound around the same so that when the drum is rotated in one direction, the dump body e1 will be raised and when the drum is rotated in the opposite direction, the body will be lowered onto the chassis 1,

rihe essential 'feat-ure of my invention in the present application is the equalizer', there being also novelty in the arrangement oit the equalizer with the peculiarly constructed trame shown.

l1 there is stretch in one ot the cables, the equalizer trame consisting of the bars 141. and 15 `will tilt so that one ot' the sheaves 12 or 13 will be raised and the other lowered so that the slack will be taken up in the stretched cable and an equal pull will result on both cables.

rllhe slack take-up or equalizer is freely movable on tne bolt 17 so that its action will be automatic and so that it will operate to prevent all ot the strain from the load being exerted upon one cable, thereby providing ttor more efficiency and ease in operation ot the hoisting mechanism.

Vhat l claim and desire to secure by Letters-Patent is:

1. .151 hoisting mechanism comprising a vertical trame having sheaves at its upper end, a winding drum carried by the trame, cables connected to the winding drum and passing over the sheaves in opposite directions, and an equalizer carried by the trame between the sheaves and consisting ot pivoted bars and sheaves mounted between them. I

r2. .Lf-1 hoisting mechanism comprising a base, vertical bars supported on said base, plates fastened to the lower portions of the vertical bars, top plates connecting the upper ends ont the vertical bars, the ends ot the top plates projecting beyond the vertical bars, sheaves between the projecting ends, a sheave traine pivoted intermediate its ends between the top plates, sheaves at the ends of the plates, a drum mounted between the plates at the lower ends of the bars, cables on the drums passing between and over the sheaves on the sheave frame and over the sheaves carried by the projecting ends of the top plates, and a dump body connected to the ends of the cables.

3. A hoisting mechanism comprising a base, vertical bars carried by said base, top plates connecting the upper ends of said bars, the bars having` in-bent and outwardly extending projecting ends to form sheave bearings, sheaves carried by the ends of the bars, a traine pivoted between the plates and confined between the vertical bars, sheaves carried by the pivoted frame, a drum supporting means carried by the lower portions of the vertical bars, a winding drum carried thereby, and cables on the drum passing between'the sheaves on .the pivoted frame and over the sheaves carried by the, ends of the top plates, the free ends oi" the cables being adapted to be secured to the load to be raised` 4. A hoist comprising a base, vertical bars supported by said base, transverse plates connecting the upper ends of .said bars and having 4ends extending beyond them, sheaves carried by the extended ends of said plates, a bolt projecting through said plates, a pair of plates pivotally supported on said bolts and between the first named plates, the last named plates being confined V between the first named plates and the vertical bars, and sheaves carried by the ends of the second mentioned plates.

In testimony whereof afix my signature.

wiNFIELD s. LivENeooD. 

